1 files changed, 19 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/canvas/getPreferredCanvasFormat.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/canvas/getPreferredCanvasFormat.spec.ts
new file mode 100644
index 0000000000..0d966bc812
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/canvas/getPreferredCanvasFormat.spec.ts
@@ -0,0 +1,19 @@
+export const description = `
+Tests for navigator.gpu.getPreferredCanvasFormat.
+`;
+
+import { Fixture } from '../../../common/framework/fixture.js';
+import { makeTestGroup } from '../../../common/framework/test_group.js';
+
+export const g = makeTestGroup(Fixture);
+
+g.test('value')
+  .desc(
+    `
+    Ensure getPreferredCanvasFormat returns one of the valid values.
+    `
+  )
+  .fn(async t => {
+    const preferredFormat = navigator.gpu.getPreferredCanvasFormat();
+    t.expect(preferredFormat === 'bgra8unorm' || preferredFormat === 'rgba8unorm');
+  });